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Digital Car Audio Amplifier Full-Range Sound with Deep Bass, this space-saving Class D powerhouse offers 800W bridged output, covering a broad 20Hz–36kHz range. Robust MOSFET technology guarantees seamless DSP compatibility and enduring audio precision, ideal for high-performance systems.
The K400.2D is engineered as a universal full-frequency amplifier , optimized for seamless DSP integration , eliminating the need for traditional crossover control. With a frequency response of 20Hz–36kHz , it delivers high-definition audio and is compatible with subwoofers, woofers, midrange drivers, and tweeters .
Engineered for high-output performance (THD=1%) , the K400.2D provides 2 x 150W @ 4Ω, 2 x 260W @ 2Ω, and 2 x 400W @ 1Ω . Bridged operation yields 1 x 520W @ 4Ω and 1 x 800W @ 2Ω , while its >88dB SNR guarantees superb audio fidelity and minimal distortion .
The K400.2D ensures stable operation across 1Ω, 2Ω, and 4Ω loads , offering versatile connectivity for any subwoofer setup . Whether you're powering a single sub or a multi-sub system , this amplifier maintains consistent, high-fidelity performance without compromise.
The K400.2D is built around a robust MOSFET power supply , designed for maximum efficiency and reliability . By minimizing heat and power loss , this amplifier maintains steady, high-output performance , ensuring your sound remains powerful and distortion-free .
Crafted from high-grade materials and assembled with precision engineering , the K400.2D is built to withstand intense audio demands . Its rugged construction guarantees long-lasting durability , ensuring consistent performance and protecting your investment for years to come.
Featuring a wide input sensitivity range (0.6V–10V) , the K400.2D guarantees perfect pairing with your head unit or DSP,
adapting smoothly to any output level for flawless system harmony.
Measuring just 173 x 113 x 47mm and weighing 1.2 kg , the K400.2D is compact yet powerful , ideal for setups with DSPs and multiple amps without occupying excessive space. Its black wire-drawn aluminum alloy heatsink and front-engraved logo reflect the strong heritage of "SENNUOPU."
| Specification (K400.2D) | |||
| Impedance | POWER(W) | Current draw(A) | Efficiency(%) |
| 4Ω(W) | 150W*2CH | 24.8A | 88% |
| 2Ω(W) | 260W*2CH | 45A | 80% |
| 1Ω(W) | 400W*2CH | 75A | 72% |
| Bridged 40(W) | 520W*1CH | 45.5A | 80% |
| Bridged 20(W) | 800W*1CH | 74.5A | 72% |
| S/N (-dB) Unweighted Full Power (1% THD) | -88dB | ||
| Frequency response(Hz) | 20HZ-36KHZ | ||
| Channel separation(dB) | -57dB | ||
| Input sensitivity (V) | 610MV-10V | ||
| Input method | Unbalanced | ||
| Input modes | RCA | ||
| Turn on mode | REM | ||
| Remote gain range (V) | 610MV-10V | ||
| Standby current(no signal)(mA) | 0.7A | ||
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